barack obama met mandela only once, in 2005, when obama was still a senator. after just one term as president, mandela stepped down. but he did not slow his pace. his charitable foundation raised money for a variety of causes. he made his last major public appearance, the crowd honoring him with a thunderous ovation. the former first lady was at his side through his battles with prostate cancer that hospitalized him near the end. never, and never again, shall it be that experience, the oppressive of one for another. in fact, shall never effect on so glorious a human achievement. thank you. >> nelson mandela. the new south africa, dead at 95. we are about 50 teen minutes away from america tonight to continue our coverage, tell us what is coming up. >> yeah, john, i don't know about you but i was struck by the number of voice swrez heard from today. of course, the long sense of concern about mandela's health, coming to the end of his life, but there are so many voices that have come out already today. one thing we are doing on "america tonight" is reaching to on